Nanjing Zhongshan Membrane Switch Co., Ltd.
Nanjing Zhongshan Membrane Switch Co., Ltd. Over 20 Years of Membrane Switch Supplier
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Embossed buttons without metal domes keypad membrane switch / ZS-
27 / export to Ukraine / with display window
Embossing on the polyester makes the keys tactile feedback and every key can be pressed
more than 1 million times. The product are mainly used as industrial control keypad and
function keyboard as home application equipment. Also, keypad can be customized based on
customer’s design such as button icons, colors etc. Selecting Autotype F150 matte PET to
screen print the overlay appears elegant and colorful. The circuits are made of Acheson ED-
820B silver paste, so that it can be low resistance and function well.
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The main technical parameters of Zhongshan membrane switch
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(1) Electrical Properties
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1, operating voltage: |
≤ 50VDC |
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2, working current: |
≤ 100mA |
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3 Contact resistance: |
0.5 ~ 5Ω |
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4 Insulation resistance: |
≥ 100MΩ (100VDC) |
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5, substrate voltage: |
2kDVC |
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6, spring time: |
≤ 6ms |
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7, loop resistance: |
50Ω |
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8, insulation ink voltage:
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100VDC
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(2) Mechanical Properties
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1, reliability, service life: |
> 1 million times |
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2, closed displacement: |
0.1 ~ 0.4mm (no touch-type) 0.4 ~ 1.0mm |
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3, health standard for power: |
280g Power |
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4, Silver migration: |
In 55 ℃, humidity 90%, 56 hours later, the second-line
between the 10MΩ/50VDC
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5, Silver online no oxidation, no impurities
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6, Silver width |
≥ 0.3mm, the smallest interval of 0.3mm, line edges <1 / 3, the line gap of <1 / 4 width
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7, pin spacing standard |
2.54mm |
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8, lead anti-curvature, with d |
10mm steel rod line pressure roller 80 constantly.
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(3) environmental performance
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1, operating temperature: |
-40 ℃ ~ +80 ℃ |
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2, storage temperature: |
-40 ℃ ~ +85 ℃ temperature of 95% ± 5% |
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3, atmospheric pressure: |
86 ~ 106kDa |
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(4) print index
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1, print size deviation |
± 0.15mm, clear code looks bad ≤ 0.1mm edges |
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2, chromatic deviation |
± 0.11mm/100mm, insulated cover all the Silver Line Ink |
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3, no ink dispersion, writing non-defective | |
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4, chromatic aberration is not more than two | |
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5, may have creases, paint stripping | |
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6, transparent windows transparent clean, uniform color, not a scratch, and impurity | |